Measurement Bases Impact on the Security of BB84 Protocol
测量基对BB84协议安全性影响

The amount of information and the bit error rate caused by eavesdropper are analyzed while the BB84 quantum key distribution protocol is attacked with intercept/resend attack using different measurement bases. The bit error rate threshold that legitimate user used to determine intercept/resend eavesdropping attack is under 15%, and a new standard is provided for secure quantum communications and the detection of eavesdropper.